I lose track of when they released the various incarnations of Passlock. There’s a ton of information out there on ways to reset and defeat all versions of Passlock. Some are as simple as cutting the yellow Passlock data line and waiting with the key in the run position for 10 minutes. There are chipped keys, chipped tumblers and RF keys. The bypass method depends on the configuration to some degree. When the proper code is not presented to the controller, it disables the fuel pump and injectors. It’s all done internal to the controller in the programming.